Check who should receive the message
Confirm that you have the right person, the right role, and permission to disclose the information involved. For a message about how to follow up for final launch signoff, use this factual base: summarize the deliverable, version, requested input, owner, and effect on the schedule.
Separate information from interpretation
Label confirmed facts, open questions, and the specific decision that belongs to the recipient. Give a small set of options and explain which default plan applies if the real deadline passes. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Use formal help when stakes rise
Do not bury a scope or price change, threaten the relationship, or pretend silence means approval. Use the contract and documented escalation route for legal, payment, privacy, or security decisions. Medical, legal, financial, employment, and safety decisions may require a qualified professional rather than personal persuasion.